Universal joint



H. M. FUNNELL.

' June 29 1926.

UNIVERSAL JOINT Filed Sept. 16 19 25 HARRY M/IWSO/V fawn;

. .INVENTOR ATTORNEY Patented 29,1

nannxunws'onnunimnn OENEW' MARK new JERSEY.- i

Umvmsn mm. 7

' Applijcation filed September IG, 1925. I serial wo. 56,767.

My invention relates to universal joints or couplings used universally on automoa biles or otherwise where angular movement is i that the joint will not run dry.

required between a driving and, driven shaft, and more particularly to the torque ring and trunnion type, and has for its object, to

produce a joint in which thelubrication is.

simplified, and conserved within the joint so In my United States Patent, 1,451,946

granted to meAp'ril 17, 1923, Ifdiscl'oseda I type of joint in which the oil reservoir is age can occur while the joint is in action. 'While thls has overcome CGItfllIl'dlSEtdVitIlplaced exteriorly toa point at which leaktages' common to joints of this type'by substantially preventing oil under pressure due to centrifugal force from throwing ofi it necessitated lubricating the joint 7 in four places and produced a plurality of lubricat- -.ing holes where the lubricant maybeforced in motion. 7 1 One of the objects ofithis invention is to Figure 1.

out bycentrifugal force while the joint is provide a single lubricant chamber with no exterior opening through which the lubricant can escape through centrifugal force, and one that is entirely separate from the torque ring. a v The foregoing and other features of my invention will now be described in connection with'the accompanying drawing forming part of this specification in which I have represented my universal joint in its preferred form after'which I shall point out more particularly in the claims those features which I believe to be new and of my 7 own invention. i

In the drawings: Figure 1 is aside elevation, in part section, of my universal joint.

F'gure 2 is a sectionalong the line 22 In the drawings I employ trunnions 12 engaged by atorque member s in the form of an annular ring 13. As this vide an annular lubricant chamber 20'made of sheet metal or die casting; On the inner circumference 'ofwhioh I provide four radial forked terminal members 10 and 11 each provided with two openings 21' adapted to interfit with hous-i ings 30, a packing washer 40 in between to a The housings 30 are "make the joint tight.

cylindrical-with a flange on each end and arezo'f a size so that the bushings15 are .60

'pressedjthereinto, leaving an annular space 16 to'befilled up by a packing 41.;

The endof the trunnion is extended be yond the bushing into the lubricant chamber and isla part of the splash system of lubrication disclosed in my former patent here? tofore identified. i s

It will be observed v by referring to l the drawings, that the lubricant chamber isen- I tirelyf outside the'points where oil will be thrownofi-the trunnions, and that the lubricant can not be thrown out of the annular V chamber by centrifugal 1force. It will also" be observed that with this construction there are no joints through which the lubricant can escape thereby providing a lubricant chamber that will retainthe oil indefinitely; I wish it distinctly understoodthat my a "universal joint herein described, and illus-' trated isin thefform 'in WhichLI desire to; v

construct itbut that changes, or variations may be made as may'be convenient or desirable without departing from the salient features of my invention and I, therefore,

intend the following claimsto cover such lines of invention.

I cla1m--- modifications-as naturally faltwithin the 1. A universal joint or shaft coupling of 1 I the ring and trunnion type comprising a I-torque ring, a separate annular lubricant reservoir located coaxialwith and entirely without the torque ring, housingsifor the lar lubricant chamber located coaxial with a and entirely outside the torque ring and provided with radial openings on thefinner trunnion bushings held by the torque ring 1 circumference 7 thereof, retainers interposed.

between the ring" and trunnion bushings,

held from turning by the torque ring and provided with extensions which interfit with the lubricant chamber. 1 In testimony whereof I 'aflix my signature. W

a, iI-IARRY MAWSON FUNNELL. 

